Write a application to get or return an exit code

Question

How to get an exit code from an application. Example: I call: System.Diagnostic.Start("regsvr32", "mydll.dll"); How to get an exit code from regsvr32?

And how to write an application which returns an exit code (like regsvr32). Thanks.

I'am using .NET 4.0 & C#.

Answer 1

This is actually two separate questions, but... The exit code is the value returned from the program's Main function. So:

public static int Main()
{
    // code

    return 0;
}

Will return an exit code of 0. Unless the preceding // code does something different.

Use the Process' ExitCode property to get this value from the application to execute.

0 is typically returned when the program succeeds. Anything else is a failure but this is a matter of interpretation.

Answer 2

Something like this should be sufficient.

private int CallSomething()
{
    using ( var p = new Process() )
    {
        p.StartInfo = new ProcessStartInfo("RegSvr32");
        p.Start();

        p.WaitForExit();

        return p.ExitCode;
    }
}

p.ExitCode is the exit code of the called process.